Columns in an externally-defined schema table must contain columns named FeatureType, AttributeName, AttrDataType, etc.

Columns in an externally-defined schema table must contain columns named FeatureType, AttributeName, AttrDataType, etc.

• A. Not necessarily
• B. True
• C. It must contain FeatureType, AttributeName, AttrDataType, etc.
• D. False

Answer: (D)

When an external schema is defined, you’re describing the structure of the data—what feature types exist, what attributes each feature has, and the data types of those attributes. There is no universal rule that the table must use exactly the column names FeatureType, AttributeName, AttrDataType, etc. The source of the schema may name these fields differently, or include additional properties; what matters is that the schema communicates the same information: for each attribute, which feature type it belongs to, the attribute’s name, and its data type (and any other needed properties). In FME, you can map from the external naming to how you want attributes represented or processed, so the exact column names aren’t required. Therefore, the statement is false.

When an external schema is defined, you’re describing the structure of the data—what feature types exist, what attributes each feature has, and the data types of those attributes. There is no universal rule that the table must use exactly the column names FeatureType, AttributeName, AttrDataType, etc. The source of the schema may name these fields differently, or include additional properties; what matters is that the schema communicates the same information: for each attribute, which feature type it belongs to, the attribute’s name, and its data type (and any other needed properties). In FME, you can map from the external naming to how you want attributes represented or processed, so the exact column names aren’t required. Therefore, the statement is false.